You will need:
This exercise is designed to allow you to use 3D aspects of thrust geometry, particularly branch lines and cut-off lines, to examine structural interpretations. The base map is the geological 'tourist' sheet to Assynt, part of the Moine thrust belt of NW Scotland, drawn from geological surveys at the end of the 19th century. In common with all maps, it is an interpretation of the geology. Treat correlations of different thrust segments (e.g. the Ben More thrust) with caution. Thrust aren't labelled in the field! You are provided with a simplified tracing which will allow you to mark on branch lines and cut-off lines. However, to complete the exercise and to find the thrusts as interpreted by the original Survey geologists, you will need to use the original map. (Moine thrust = T'''; Ben More thrust = T''; Glencoul Thrust = T' on this map).
A web-solution for this exercise is available.
The following analytical strategy is proposed:
The original map, published by the British Geological Survey, is the Special Sheet to the Assynt district (1:63360), originally published in 1923 but reprinted in 1986.
This exercise is discussed, in part, by the following articles:
Elliott, D. & Johnson, M.R.W. 1980. Structural evolution in the northern part of the Moine thrust belt, NW Scotland. Trans. R. Soc. Edinburgh 71, 69-96.
Coward, M.P. 1985. The thrust structures of southern Assynt, Moine thrust zone.
Geological Magazine 122, 595-607.